What question did this study set out to answer?

The research aims to clarify the structural claims of the GCV framework within the GR-exact branch, addressing radiative stability and observational tests.

February 20, 2026Open Access

Radiatively Stable General Relativity with a Flux-Fixed Cosmological Constant (GCV): A minimal structural claim, modular mapping, and survey-facing falsifiers

Key Points

The research aims to clarify the structural claims of the GCV framework within the GR-exact branch, addressing radiative stability and observational tests.
Provides an audit guide for the Gauged Constant Vacuum-Mode framework
Defines a minimal late-time interface for growth-only responses
Specifies a mapping interface from UV to EFT to form an operator inventory
Formulates observational tests and falsifiers in ruler-free geometry
Local dynamics remain consistent with general relativity using a flux-fixed integration constant
Late-time background expansion is indistinguishable from flat ΛCDM
Does not predict value or sign of Λ_eff or deviations from GR/ΛCDM

Abstract

Version note (v1. 0. 1): Scope clarification only (no new numerics): makes explicit that this audit guide separates (i) the EFT‑level radiative‑stability claim on the GR‑exact branch from (ii) any global selection/typicality/measure model over flux sectors, which is only needed for distributional predictions of realised Λeff ₄₅₅Λeff. This record provides a concise, journal-neutral audit guide for the Gauged Constant Vacuum-Mode (GCV) framework on its GR-exact branch, including the minimal late-time deformation interface and survey-facing falsifiers intended for independent verification and reporting. Core claim. GCV realises a GR-exact branch in which the strictly spacetime-constant vacuum mode is gauge-controlled and does not appear as a local gravitational source. Local dynamics remain GR-exact with a flux-fixed integration constant Λₑff in the Einstein equations, while the local stress-energy tensor T^ (loc) ⏛⏜ contains only local excitations (matter/radiation perturbations), excluding strictly constant vacuum contributions. Once Λₑff is fixed by late-time data, the background expansion on this branch is indistinguishable from flat ΛCDM (wDE = −1). Scope. This note: states the structural GR-exact claim and defines the minimal late-time interface: an optional, growth-only excitation response sector on a fixed GR+Λₑff background, specifies a UV → EFT → ε mapping interface used to translate UV assumptions into (i) an operator inventory consistent with the GR-exact branch and (ii) a restricted late-time response template family g (z), formulates late-time observational tests and falsifiers in ruler-free geometry and growth observables (including the growth-tilt sign discriminator), and provides a minimal adoption/reporting checklist to make independent analyses comparable. This note does not: predict the numerical value or sign of Λₑff; provide a UV-unique completion; claim a detection of deviations from GR/ΛCDM; re-run survey pipelines; or include code listings or numerical work in the PDF. Numerical constraints, likelihood constructions, and reproducibility bundles are provided in the cited companion records. Companion records (supplementary modules). See related works Project homepage: https: //johansson. digitalProject overview hub: https: //github. com/gcv-framework/gcv-vacuum-energy

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